Corn base fertilizer for saline alkali land, preparation method and application thereof

A technology for saline-alkali land and base fertilizer, which is applied to the field of corn base fertilizer for saline-alkali land and its preparation, can solve the problems such as the decrease in the quantity and quality of aggregates, the decrease in soil organic matter content, the deterioration of soil physical properties, and the like, so as to promote the synthesis of auxin and increase the content of organic matter. , Improve the effect of water permeability

Inactive Publication Date: 2012-05-30
SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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  • Summary
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Problems solved by technology

However, under continuous cropping of corn, especially under the condition of only paying attention to the use of chemical fertilizers, the content of organic matter in...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Put 3 kg of wood bran, 30 kg of straw, 20 kg of weathered coal, 2.5 kg of urea, and 0.07 kg of compost starter, crush them and stack them at room temperature for two weeks (or use fermentation equipment to ferment, the fermentation time can be shortened to 24-72 hours) ), after that, dry it in the air for three days (or dry it with a drying machine), become a dry product of about 50 kg, and carry out secondary crushing and pass through a 5mm sieve.

[0024] Add 8 kg of perlite to 2.5 mol / L hydrochloric acid, stir for 30 minutes, soak for 24 hours, bake at 120°C until constant weight, and crush it for later use.

[0025] Fully mix the acidified perlite with 40 kg of calcium sulfate and organic compost, add 2mol / L dilute sulfuric acid, adjust the pH of the material to 4.5, adjust the moisture content of the mixed material to 30-45%, add 40 kg of compound fertilizer (1.3 kg of ammonium nitrate , 19.6 kg of diammonium, 13.3 kg of potassium sulfate, 5.66 kg of zinc sulfate a...

Embodiment 2

[0028] Put 50 grams of wood bran, 750 grams of straw powder, 700 grams of lignite, 40 grams of urea, and 2 grams of compost starter, crush them and stack them at room temperature for two weeks (or use fermentation equipment to ferment, the fermentation time can be shortened to 24-48 hours) , and then dry it in the air for three days (or dry it with a drying machine), and become a dry product of about 1500 grams, carry out secondary crushing, and pass through a 5mm sieve.

[0029] Soak 300 grams of medical stone in hydrochloric acid with a concentration of 2.8 mol / L for 24 hours, bake at 120°C to constant weight, and grind it for later use.

[0030] Fully mix 1500 grams of organic fertilizer, medical stone and calcium sulfate, add 2mol / L dilute sulfuric acid, adjust the pH of the material to 5, adjust the moisture of the mixed material to 30-45%, add 1400 grams of compound fertilizer (475 grams of ammonium sulfate, overweight 505 grams of calcium phosphate, 292 grams of potassi...

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PUM

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Abstract

The present invention relates to saline alkali land corn base fertilizer, and specifically to a saline alkali resistance corn base fertilizer and a preparation method thereof. The corn base fertilizer comprises, by weight, 150-250 parts of an organic matter, 100-200 parts of calcium sulfate, 5-10 parts of urea, 100-200 parts of compound fertilizer, 2-5 parts of an active cover agent, 20-40 parts of a porous inorganic substance, 150-250 parts of an acidic liquid, and 0.1-0.5 parts of a compost fermentation agent, wherein the compound fertilizer mainly comprises N, P, K and Zn, the weight ratio of the N to the P to the K to the Zn is 1:0.80-1.10:1.20-1.60:0.40-0.70, and the use amount of a N fertilizer slow-release agent (dicyandiamide) is 2.0-3.0% of the use amount of the N fertilizer. According to the present invention, the special corn fertilizer has an effect of regulation of the pH value of the soil; the considerable organic material, the porous inorganic material, and the like are added, such that the effects of soil structure improving, soil organic matter improving, and soil fertility improving are provided; the utilization efficiency of the N in the compound fertilizer can be improved by matching the corn base fertilizer with the N fertilizer slow-release agent.

Description

technical field [0001] The invention relates to a corn base fertilizer suitable for saline-alkali land, in particular to a corn base fertilizer for saline-alkali land and its preparation. Background technique [0002] Land salinization is an important factor that threatens world food security. Saline-alkali land is widely distributed in the world, involving nearly 100 countries on five continents. According to incomplete statistics from relevant international organizations, the global saline soil area is about 1.43×10 10 Mu, and with unreasonable fertilization and cultivation, the area has a tendency to expand. The situation in our country is not optimistic. There are about 1.49×10 saline-alkali land 9 Mu, mainly distributed in 23 provinces, municipalities and autonomous regions in 5 regions, is an important type of land resource. Rational development and utilization of saline-alkali soil can not only increase crop yield, alleviate food crisis, but also improve ecological ...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G5/00A01C21/00
Inventor 马强宇万太张璐徐永刚姜春明
Owner SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
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